WebSphere Application Server & Liberty

WebSphere Application Server & Liberty

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  • 1.  Command to generate Heap command

    Posted Thu September 22, 2016 06:31 AM

    Hi All,

    Any command exist like kill -3 Pid for thread dump similarly for heap dump any command is there? Rest of the methods through wsadmin, and console level

    iam aware of it.

    kalyan.



  • 2.  RE: Command to generate Heap command

    Posted Thu September 22, 2016 01:54 PM

    Hi,

    I hope you read this article. Informative..,

     

    http://www-01.ibm.com/support/docview.wss?uid=swg21597830



  • 3.  RE: Command to generate Heap command

    Posted Fri September 23, 2016 09:09 AM

    Hi Kalyan

      You can configured your dumps (java, heap, system) with -XDump option
     
      MustGather: Using the -Xdump Option
      http://www-01.ibm.com/support/docview.wss?uid=swg21242497#Dump_Types_And_Triggering


      Using dump agents
      http://www.ibm.com/support/knowledgecenter/SSYKE2_7.1.0/com.ibm.java.lnx.71.doc/diag/tools/dump_agents.html

     

      Servers > Application Servers > serverName > Java and Process Management > Process Definition > Java Virtual Machine

       Generic JVM arguments field:
       
       -Xdump:java+heap+system:events=user
       
      with "events=user", when you do "kill -3 PID" your selected dump types will generated.
     
      or you can configure your server to generate dumps automatically with
     
       Application servers > SERVER_NAME > Process definition > Environment Entries
          IBM_HEAPDUMP true
          IBM_HEAPDUMPDIR /tmp
          IBM_HEAPDUMP_OUTOFMEMORY true
          IBM_JAVACOREDIR /tmp
          IBM_JAVADUMP_OUTOFMEMORY true
          JAVA_DUMP_OPTS ONANYSIGNAL(JAVADUMP[5],HEAPDUMP[5])
          
      Thanks to Brian Paskin and Petr Hostalek for their clear explanation at
     
      How to automatically enable heap dump in WAS ND 7
      https://www.ibm.com/developerworks/community/forums/html/topic?id=46e5b60e-18ac-49d8-b1f0-439169a83013
     
      Hope this helps. Tell us if you need more support
     
    Regards



  • 4.  RE: Command to generate Heap command

    Posted Wed September 28, 2016 09:32 AM

    Team,

    Could you please hlep me on application url / JVM monitoring shell script

    like https://hostname:9080/appliction

    https://hostname:9081/appliction



  • 5.  RE: Command to generate Heap command

    Posted Wed September 28, 2016 10:05 AM

    Hi AMAR,

      Different question, open a new thread please.

      Thanks in advanced.

    Regards